CH217969A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

Info

Publication number
CH217969A
CH217969A CH217969DA CH217969A CH 217969 A CH217969 A CH 217969A CH 217969D A CH217969D A CH 217969DA CH 217969 A CH217969 A CH 217969A
Authority
CH
Switzerland
Prior art keywords
dye
chloro
preparation
oxyazo
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH217969A publication Critical patent/CH217969A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     o-Ogyazofarbstoffes.       Nach dem im     Hauptpatent    beschriebenen  Verfahren erhält man einen Wolle beim Fär  ben nach dem     Chromierungsverfahren    in  marineblauen Tönen färbenden     Azofarbstoff,     wenn man     3,4,6-Trichlor-2-amino-l-oxy-          benzol        diazotiert    und     ,mit        1-Methy        1-4-chlor-5-          oxynaphthalin-ll-sulfonsäure    kuppelt.  



  Wie nun weiter .gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       4-Chlor-2-amino-l-oxybenzol        diazotiert    und  mit     1-Methyl-4-chlor-5-oxynaphthalin-1'-sul-          fonsäure    kuppelt.  



  <I>Beispiel:</I>  14,35 Teile     4-Chlor-2-amino-l-oxybenzol     werden mit 150 Teilen Wasser und 25 Teilen  Salzsäure von 12       Be        angeschlämmt    und mit  6,9 Teilen     Natriumnitrit        diazotiert.    Die     Di-          azoverbindung    wird dann zu der mit     Eis     versetzten Lösung von 28,5 Teilen     1-Methyl-          4-chlor-5-oxynaphthalin-1'-sulfonsäure    und  8,2 Teilen     Natriumcarbonat    in 250 Teilen  .Wasser gegeben.

   Nach     beendeter    Kupplung    werden 8 Teile     Natriumcarbonat    hinzugefügt;  der Farbstoff wird dann in der üblichen  Weise aufgearbeitet. Er bildet nach dem  Trocknen     ein    dunkles Pulver, das sich in  Wasser gut löst. Die     chromierte    Färbung auf  Wolle ist klar blau und hat sehr gute Echt  heitseigenschaften.



  Process for the preparation of an o-ogyazo dye. According to the process described in the main patent, an azo dye that dyes wool in dyeing ben by the chromating process in navy blue shades is obtained if 3,4,6-trichloro-2-amino-l-oxybenzene is diazotized and, with 1-methyl 1- 4-chloro-5-oxynaphthalene-II-sulfonic acid couples.



  As has now been found, a similar dye is obtained if 4-chloro-2-amino-1-oxybenzene is diazotized and coupled with 1-methyl-4-chloro-5-oxynaphthalene-1'-sulphonic acid.



  <I> Example: </I> 14.35 parts of 4-chloro-2-amino-1-oxybenzene are suspended in 150 parts of water and 25 parts of hydrochloric acid of 12 Be and diazotized with 6.9 parts of sodium nitrite. The di-azo compound is then added to the ice-added solution of 28.5 parts of 1-methyl-4-chloro-5-oxynaphthalene-1'-sulfonic acid and 8.2 parts of sodium carbonate in 250 parts of water.

   When the coupling is complete, 8 parts of sodium carbonate are added; the dye is then worked up in the usual way. After drying, it forms a dark powder that dissolves well in water. The chromed dye on wool is clear blue and has very good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, daB man 4-Chlor-2-amino-l-oxybenzol diazotiert und mit 1-Methyl-4-chlor-5-oxynaphthalin-ll- sulfonsäure kuppelt. Der Farbstoff bildet getrocknet ein dunkles Pulver, das sich in Wasser gut löst. Er färbt Wolle, nach dem Chromierungsver- fahren gefärbt, in echten, klarblauen Tönen. PATENT CLAIM: A process for the production of an o-oxy azo dye, characterized in that 4-chloro-2-amino-1-oxybenzene is diazotized and coupled with 1-methyl-4-chloro-5-oxynaphthalene-II-sulfonic acid. When dried, the dye forms a dark powder that dissolves well in water. It dyes wool, dyed using the chroming process, in real, clear blue shades.
CH217969D 1938-07-07 1939-05-03 Process for the preparation of an o-oxyazo dye. CH217969A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE217969X 1938-07-07
CH215402T 1939-05-03

Publications (1)

Publication Number Publication Date
CH217969A true CH217969A (en) 1941-11-15

Family

ID=25725715

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217969D CH217969A (en) 1938-07-07 1939-05-03 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH217969A (en)

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